enoch/armbian-build
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Lower default CPU and DRAM frequencies for H5 and A64 devices

Browse Source
This commit is contained in:
zador-blood-stained 2017-11-01 13:04:00 +03:00
parent 7b89eb1a70
commit 46e082773a
3 changed files with 80 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
patch/u-boot/u-boot-sunxi/lower-DRAM-frequency-H5.patch Normal file
View File

@ -0,0 +1,39 @@
diff --git a/configs/orangepi_pc2_defconfig b/configs/orangepi_pc2_defconfig
index 61b2d98705..e4771dce7d 100644
--- a/configs/orangepi_pc2_defconfig
+++ b/configs/orangepi_pc2_defconfig
@@ -2,7 +2,7 @@ CONFIG_ARM=y
CONFIG_ARCH_SUNXI=y
CONFIG_SPL_SPI_FLASH_SUPPORT=y
CONFIG_MACH_SUN50I_H5=y
-CONFIG_DRAM_CLK=672
+CONFIG_DRAM_CLK=648
CONFIG_DRAM_ZQ=3881977
CONFIG_MACPWR="PD6"
CONFIG_DEFAULT_DEVICE_TREE="sun50i-h5-orangepi-pc2"
diff --git a/configs/orangepi_zero_plus2_defconfig b/configs/orangepi_zero_plus2_defconfig
index 57c63b962a..ec9e5c73b1 100644
--- a/configs/orangepi_zero_plus2_defconfig
+++ b/configs/orangepi_zero_plus2_defconfig
@@ -1,7 +1,7 @@
CONFIG_ARM=y
CONFIG_ARCH_SUNXI=y
CONFIG_MACH_SUN50I_H5=y
-CONFIG_DRAM_CLK=672
+CONFIG_DRAM_CLK=624
CONFIG_DRAM_ZQ=3881977
CONFIG_MMC0_CD_PIN="PH13"
CONFIG_MMC_SUNXI_SLOT_EXTRA=2
diff --git a/configs/orangepi_prime_defconfig b/configs/orangepi_prime_defconfig
index 103936d772..990cf2a8c0 100644
--- a/configs/orangepi_prime_defconfig
+++ b/configs/orangepi_prime_defconfig
@@ -1,7 +1,7 @@
CONFIG_ARM=y
CONFIG_ARCH_SUNXI=y
CONFIG_MACH_SUN50I_H5=y
-CONFIG_DRAM_CLK=672
+CONFIG_DRAM_CLK=648
CONFIG_DRAM_ZQ=3881977
CONFIG_DEFAULT_DEVICE_TREE="sun50i-h5-orangepi-prime"
# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set

13
patch/u-boot/u-boot-sunxi/lower-default-DRAM-freq-A64-H5.patch Normal file
View File

@ -0,0 +1,13 @@
diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
index 2309f59999..716e9c5e26 100644
--- a/arch/arm/mach-sunxi/Kconfig
+++ b/arch/arm/mach-sunxi/Kconfig
@@ -278,7 +278,7 @@ config DRAM_CLK
default 312 if MACH_SUN6I || MACH_SUN8I
default 360 if MACH_SUN4I || MACH_SUN5I || MACH_SUN7I || \
MACH_SUN8I_V3S
- default 672 if MACH_SUN50I
+ default 648 if MACH_SUN50I || MACH_SUN50I_H5
---help---
Set the dram clock speed, valid range 240 - 480 (prior to sun9i),
must be a multiple of 24. For the sun9i (A80), the tested values

28
patch/u-boot/u-boot-sunxi/lower-default-cpufreq-H5.patch Normal file
View File

@ -0,0 +1,28 @@
Some H5 boards are designed to start at 1.1V CPUx voltage (e.g. Nano Pi
NEO2), which may not work properly at 1008MHz if the chip's quality is
not so good.
Lower the default CPUx frequency of H5 to 816MHz.
Signed-off-by: Icenowy Zheng <icenowy at aosc.io>
---
arch/arm/mach-sunxi/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
index 09cfec6f57..1fededd0a3 100644
--- a/arch/arm/mach-sunxi/Kconfig
+++ b/arch/arm/mach-sunxi/Kconfig
@@ -397,9 +397,9 @@ config SYS_CLK_FREQ
default 1008000000 if MACH_SUN5I
default 1008000000 if MACH_SUN6I
default 912000000 if MACH_SUN7I
+ default 816000000 if MACH_SUN50I || MACH_SUN50I_H5
default 1008000000 if MACH_SUN8I
default 1008000000 if MACH_SUN9I
- default 816000000 if MACH_SUN50I
config SYS_CONFIG_NAME
default "sun4i" if MACH_SUN4I
--
2.13.6